I'm not defending Urban Assault (because its BS and annoying) but I'm pretty sure that the two shrecks of the PG's do as much damage as the 3 bazookas, and are more likely to penetrate.
Even more annoying was having to play two automatch games last night against a "top 30" OKW player who had Urban Assault as one of his 3 OKW commanders. He used both Calliopes and Rangers in both matches, but couldn't buy zooks for his rangers. Rangers with Thompsons shred cons.
shreks fire much slower and they come on 4 man squad, so much more easier to wipe. RN USF just have so many over performing units (jackson, riflemen etc.) that are difficult to nerf as the factions relies on them and on top of that, they have this nonsense